Calculate the closed loop gain for the following circuit. Assume A = 0 for both transistors and R,+ R2 is very large. Circuit parameters / Devre Parametreleri 9m1 = 49 ms, 9m2 = 33 ms, R, = 101 kn, R2 = 26 k, Ro = 2.2 kn VDD %3D Rp Vout Vino R2
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Q: +15 V 25 mV LF157A Vout pp 3 k2 -15 V 150 2
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- In the circuit given in the figure, Vcc = 15V, R1 = R2 = 10k ohm, RE = 1k ohm, RL = 0.5k ohm and transistor parameters are given as VBE = 0.7V, beta (dc) = beta (0) = 100. According to this;a) Calculate the values of DC bias currents and voltages (I (BQ), I (CQ), V (CEQ)).b) Using the hybrid model of the transistor, draw the small signal equivalent circuit of the circuit.c) Derive the input impedance expression of the circuit and calculate its value.d) Derive the voltage gain expressions A (vi) and A (VG) and calculate its value.e) Derive the current gain expression A (i) = I (0) / I (i) and calculate its value. I sent you question's image. Thank you..1) Calculate the DC parameters listed in Table 1 for Q1 and Q2 for the MOSFET amplifier circuit shown in the figure. 2) Calculate the AC parameters. Compute the gain by completing the small signal analysis. Draw the input and output signals to scale.Vs=100 mV peak-to-peak, 1 kHz sine signal, Kn=0.4mA/v^2 ,Vt=1V , λ=0.01V^-1 Make the DC analysis of the above given mosfet amplifier circuit. Simulation to tableWrite down the measured values and mathematical calculation results. (The valueswith the units.)DC Parameters ,Measured value ,Calculated ValueVGETCVGSVDVDSIDb. Draw the small signal model for the AC analysis of the circuit. Find the gm, ro, Av values.c. Show the Vs input signal and the Vo output signal of the circuit on the oscilloscope. Volt/div of channels andSpecify time/div values.
- The multistage amplifier circuit of Figure Q.2(b) have the following parameters:Q1 and Q2 : β = 200, VBE = 0.7 V, VT = 26 mV , VA = ∞Given that ICQ1 = 2 mA and VCEQ1 = 2 V. (i) Determine the value for RB4. List the assumption/approximation made in the analysis.(ii) Sketch and label the small-signal hybrid-π equivalent circuit at midbandfrequency range.(iii) Calculate the small signal hybrid-π model parameters: gm and rπ for Q1 and Q2. Then, determine Zi2 and Zo.For the BJT amplifier circuit of figure below with the following parameters:β = hfe ≈ 250, re= 20.3Ω, and ro = 1/hoe ≈ ∞ Ω, Zb= 50.26KΩ determine:(a) Draw the Ac equivalent circuit in re- model and hybrid model.(b) hie, , Zi , and Zo'(c) Av using h- model.(d) Avs and ac output voltageFor the 2 circuits shown above, βnpn = 100, βpnp = 50, VDO = 0.7 V, R2 = 150 kΩ, and RB = 12 kΩ Using the ac small-scale signal analysis, determine for each circuit: a) The voltage gain (Av = vout/vin) b) The input resistance (Rin) c) The output resistance (Rout)
- Draw the equivalent circuit for a common-emitter bipolar transistor amplifier andderive suitable formulae for the amplifier current gain, voltage gain and power gain.Neglect bias,decoupling and coupling componentsInstruction/s: Draw, Illustrate and label your schematic diagram before solving the problem.2.) Given a Collector -Feedback Biased transistor circuit with voltage at common collector is +10v ,base resistor is 100k ohms, Collector resistor is 10k ohms and Base current is 8.38 micro ampere, ,Voltage at Base-emitter junction is 0.7v. Determine Beta DC , Collector current and Voltage at collector-emitter junction. These might help as a guide to answer the problem...A base voltage of four volts is applied to an NPN bipolar junction transistor. A twenty kilo ohm resistor is linked to the base, while a hundred kilo ohm resistor is connected to the collector. The Collector is powered by a six volt supply voltage. Assume the transistor is in active mode, with a fifty common Emitter current gain(β).(i) Utilize the dc equivalent model of the transistor to draw the circuit design.(ii) Calculate the Collector current (IC) and the Base current (IB) .ii) Locate/determine the result (VCE).
- a.) Consider a two-BJT configuration in Figure 1. You may assume that both transistors are the same with the same β, VBE,on = 0.7 V, and VCE,EOS = 0.3 V. Determine the minimum voltage VBE that will turn ON both Q1 and Q2. b.) Using the BJT small-signal model given in Figure 2, determine the AC current gain Ai = iout/iin for the circuit given in Figure 3. Assume ro >> rπ. You may assume that β is large.In the circuit given in the figure, Vcc = 15 V, R1 = R2 = 10kΩ, RE = 1KΩ, RL = 0.5kΩ and transistor parameters are given as VBE = 0.7V, ßdc = ß0 = 100. a. Calculate the values of DC bias currents and voltages (IBQ, ICQ and VCEQ). b. Draw the small signal equivalent circuit of the circuit using the hybrid model of the transistor. c. Derive the input impedance expression of the circuit and calculate its value. d. Derive the AVI and AVG voltage gain expressions and calculate their values. e. Derive the current gain expression AI = I0 / Ii and calculate its value. Compare this value you have calculated with the value you will calculate using the expression Aİ = Zi AVI / RL.2. A load of 8Ω is supplied by a single-switch Direct Current (DC) chopper with an inputvoltage of 40V. The switching frequency is 800Hz, the duty ratio is 0.4, and thetransmission voltage drop of the transistor is 2.4V a. Draw the chopper circuit presented in the question b. Find the switching period with the duty time of BJT c. Draw the load voltage, load current, BJT current, BJT voltage along two periods d. Find the output voltage. Is the achieved load voltage the average value or the effectivevalue e. Find the output power f. Find the average value and effective value of BJT current g. Find the power loss of BJT h. Find the DC source current i. Find the circuit efficiency